baber/WOPTO huggingface dataset:
Patent GB-156163-A (GB)
Title: Improvement in pencil holders
IPC: B43K21/14
Filed: 1920-12-31
Abstract: 156,163. Fischer, H. L. March 27, 1919, [Convention date]. Pencil-holders; erasers .-A pencilholder comprises a tubular barrel 1, Fig. 1, tapered at its forward end 2 and a lead-ejecting means, including a housing therefor which, with the barrel, forms a receptacle for spare leads, a head connected to the leadejecting means serving also as a closure for the receptacle. The lead 5 is supported when in use by the passage through the front end of the barrel and by a socket 7 pivotally and resiliently attached to a rod 8, which is fixed to a nut 22 threaded on a rod 15. The nut is held against rotation on the rod 15 in a recess formed by the trough-shaped housing 24, Fig. 5, frictionally held in the rear end of the barrel by a longitudinallyextending rib 25 and the edges 26, 27 engaging the inner surface of the, casing. The screwed rod 15 is fixed by a nut 16 in an operating-head 17 rotatably mounted in, and forming a removable operating-unit with, a locking-collar 18 which screws into the enlarged rear end of the barrel. When the lead is exhausted, the socket 7 engages the shoulder 14 at the front end of the barrel, and further rotation of the head-piece 17 forces the rod 8 forward in the socket, through the rod 15 and nut 22, to eject the lead. To recharge the pencil, the ejecting-mechanism is unscrewed and removed from the barrel. The housing 24 is provided with a slanting flange 28 at one end, to aid in ejecting broken pieces from the part 6 of the casing and to form a closure for the chambers formed about the housing of the casing 1, which chambers serve to accommodate the spare leads. The head 17, which closes the rear end of the chambers, is formed with a recess to receive the ends of the spare leads to prevent them from falling out when the operating-unit is unscrewed and the holder inverted. A piece of erasing-substance 36 is held in the head 17. The Specification as open to inspection under Sect. 91 (3) (a) describes also the following modifications. The barrel may be of hexagonal crosssection, and a nut of corresponding shape, provided with sockets for spare leads, is then used. In the modification shown in Fig. 9 (Cancelled), the barrel is hexagonal in shape and the leadejecting means consists of a hollow cylindrical rod 15a formed with a spiral groove or thread 40 to drive a nut 22a. The rod 8, attached to the nut 22<a>, engages in one of the spaces formed between the rod 15a and the corners of the barrel. The rod 15a is closed by a cap 46 to provide a receptacle for spare leads, an eraser 48 being screwed into the outer end. The collar 18 is held between a washer 44 rigidly fixed to the member 15<a> and a spring washer 45 interposed between the collar and the head 18 to prevent too free rotation of the head 17. The rear end of the rod 8 may be formed into a coil which resiliently engages the threads 40 of the member 15a. This subjectmatter does not appear in the Specification as accepted.
Patent GB-924142-A (GB)
Title: Improvements in or relating to microwave filters
Inventor: SCHELISCH ERNST FRIEDRICH
IPC: H01P1/20
Filed: 1958-11-14
Abstract: 924,142. Impedance networks. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Aug. 24, 1959 [Nov. 14, 1958], No. 36773/58. Class 40 (8). A microwave filter element comprises a length 3 of guide or line divided throughout its length by at least one conductive longitudinal partition 4 into at least two microwave paths 5, 6 which extend the length of the guide or line and each of which is open to microwave communication therethrough, the paths 5, 6 being each filled with a dielectric material of different dielectric constant to be of different predetermined electrical lengths at a predetermined microwave frequency. In a filter element adapted to give an attenuation pole at a predetermined frequency, the dielectric fillings are so chosen that the electrical lengths of the two paths differ by substantially an odd number of half wavelengths whereby the outputs are substantially in phase opposition and the crosssectional dimensions of the two paths are so chosen that the outputs are of substantially equal amplitudes. Alternatively the electrical lengths can be such as to differ by a whole number of wavelengths. The filter element can comprise a length of wave-guide, coaxial line or strip line. Any suitable solid, liquid or gaseous (including air) dielectric materials can be used as dielectric fillings. A number of filter elements can be provided suitably spaced apart in the run of a guide or line to form band-pass, band-stop, high-pass or low-pass filters. The characteristic impedances of the undivided guide at 1 and 2 and at the two ends of the length 3 can be the same but the dimensions can be chosen to produce required characteristic impedances. In modifications known methods-such as tapering differently sized sections of the guides into one another-can be used to avoid sharp impedance changes.
Patent GB-975074-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B65H29/56
Filed: 1962-09-28
Abstract: 975,074. Copying documents; delivering sheets. W. RITZERFELD, and G. RITRERFELD. Sept. 28, 1962 [Oct. 27, 1961], No. 36850/62. Headings B6C and B6H. A rotary duplicating machine comprises a drum 1 carrying a master sheet 3, an impression roller 11 adapted to co-operate therewith for printing copy sheets 34 fed between the drum and the roller from the feed side of the machine pivoted stripper members 25, and deviating means 36, 42 provided at a region subsequent to the line of printing and so spaced from said line that the leading portion of the printed sheet falls under gravity into engagement with the deviating means, said means being so shaped as to form for each sheet a slide path for guiding the sheet towards the feed side of the machine and on to an endless conveyer 37 which delivers it to a tray 43. When a cam 6 is moved into an operative position for controlling the printing of the entire text by means of a slide rod 12 the strippers 25 are maintained in the full line position, Fig. 1, by means of levers 31 and 33 and a roller 32 and the printed sheets slide over the members 25 and are thereby guided to deflecting wires 36 supported by a rail 35. On movement of the slide rod 12 to the left the cam 7 for controlling intermittent printing of the master text is brought into its operative position and a spring 40 moves the strippers 25 to the dotted line position, Fig. 1. The strippers are now controlled by a cam 4 by means of a lever 28 and a follower 41 and are moved out of the grooves 26 in the drum 1 shortly before the ends of the grooves reach the strippers. The copy sheet 34 is stationary during interruptions in the cooperation of the drum 1 and the roller 11 and is held by the strippers out of contact with the drum 1. The printed sheet passes from the bight beneath the strippers and engages deflecting wires 42. The curved guide wires 36 and 42 may be replaced by a plate having protruding ribs.
Patent GB-522944-A (GB)
Title: Improvements in or relating to variable speed gear units
IPC: F16H3/66
Filed: 1938-12-19
Abstract: 522,944. Variable-speed gear. CHAPMAN, R. B. Dec. 19, 1938, No. 36872. [Class 80 (ii)] A variable-speed gear comprises a multiple planetary gear engaging annuli which may be braked. The driving wheel A engages multiple planet wheels C engaging wheels E<1>, F', G<1>, provided with brake drums E<2>, F<2>, G<2> and the spindles D carrying the planet wheels C also carry planet wheels J engaging wheels K on the driven shafts B, M. The parts of the axle of the spindles D in the wheels C may be inclined so that wheel E<1> may be smaller than wheel A. Brake drums E<2>, F<2> may be clutched together to give a direct drive. A reverse drive is obtained by braking a drum H<2> carrying a pinion H<3> engaging external teeth on the wheel A and internal teeth on a wheel H<1> externally engaging the wheel C. An automatic control as described in Specification 522,995 may be used.
Patent GB-965156-A (GB)
Title: Material exchange columns
IPC: B01J19/24
Filed: 1962-09-28
Abstract: 965,156. Fractional distillation apparatus. SULZER FRERES S.A. Sept. 28, 1962 [Nov. 17, 1961], No. 36961/62. Heading B1B. In a fractional distillation apparatus of the type comprising a plurality of ducts 2, which contain packing, for contacting upwardly flowing vapour with downwardly flowing liquid, the desired product is removed from each duct via a tube 10 and a common chamber 8; and a flexible diaphragm mounted in the chamber 8 is used to open or close all the tube apertures simultaneously as required by adjusting the pressure of a fluid, such as a gas, in a controlchamber 16 within chamber 8. In the embodiment shown, the desired product is withdrawn as vapour and is passed from chamber 8 into condenser 21 via pipe 20. The top of chamber 16 is closed by a perforated plate 12 mounted in ring 13. Overlaying the perforated plate is a flexible diaphragm 11 of rubber or resilient plastic, the edge of which is clamped between the ring 13 and a clamping ring 18. When this diaphragm rests on plate 12, vapour from tubes 10 can pass into chamber 8 via slots in an annular rim 19 surrounding the edge of the diaphragm. During the period when no product is being removed and in which the product is being enriched in the bottom portions of the ducts 2, the outlet ends of the tubes 10 are closed by the diaphragm 11 which is raised by increasing the fluid pressure in chamber 16, using a pressure pump 25 connected to chamber 16 via pipes 17 and 24 and a three-way valve 23. To remove the product for a few minutes in every hour, the pressure inside chamber 16 is reduced by connecting the chamber to a vacuum pump 27 via the threeway valve 23, thus causing the diaphragm 11 to rest on plate 12. Conveniently valve 23 is a solenoid valve automatically controlled by a preset timing device, or by a density measuring device metering the concentration of the product. The separation of light and heavy water by fractional distillation is mentioned. Specification 836,858 is referred to.
Patent GB-932426-A (GB)
Title: Improvements in or relating to the casting of molten metal
IPC: B22D11/055
Filed: 1959-11-02
Abstract: 932,426. Continuous casting. K. H. STEIGERWALD. Nov. 2, 1959 [Oct. 31, 1958; Dec. 15, 1958], No. 37046/59. Class 83 (1). A method of continuous casting comprises casting metal around a central partially solidified ingot 43. A mould for use in the method comprises two contiguous mould parts 30, 31, of different cross-sections. The mould parts may be of copper and be water-cooled. Heatinsulated strips 34, 35 prevent solidification of the shell of the ingot allowing molten metal 45 to flow to the mould part 31. The mould may be oscillated and a vacuum atmosphere be employed at the axis end. Due to the solidified sides of the core 39, Fig. 5, being separated by molten metal, they are not pulled away from the mould walls by shrinkage. In modifications, the mould has several parts of differing cross-section, Fig. 7, or has non-concentric parts, Fig. 12, or the upper part is of square cross-section and the lower part circular, or the connecting shoulders are bevelled, or the mould parts 76, 79, Fig. 18, may be separate and be reciprocated at different speeds, or the upper part may be in two sections 89, 90, Fig. 22. Another mould has a part 85, Figs. 20 and 21, supported by arms 87 containing water-cooling passages, and a part 86 in which the metal may rise above the lower end of the part 85. A vacuum connection 94, Fig. 27, may be made to a mould to cause the skin 95 to cling fast to the mould wall. The upper ingot may be separated partially or wholly by the insulated portions 96, Fig. 25. The upper ingot may be completely solidified if a passageway 100, Fig. 28, is provided to conduct molten metal to the lower mould part. Alternatively, separate supply passages may be provided. The use of insulated portions may be obviated by providing helical or oblique entry portions between the mould parts 113, 115, 114, Fig. 32. In further modifications, the insulated portions are replaced by heated portions.
Patent GB-922278-A (GB)
Title: New 6-aminopenicillanic acid derivatives and preparation thereof
Inventor: VANDERHAEGHE HUBERT
IPC: C07D499/00
Filed: 1960-10-28
Abstract: Relates to 6-aminopenicillanic acid derivatives of the general formula <FORM:0922278/IV(a)/1> wherein X1 represents chloro, bromo or hydrogen, X2 represents chloro or, when both X1 and X3 are hydrogen, may also represent bromo, X3 is hydrogen but may also represent chloro when both X1 and X2 are chloro and M represents hydrogen or a pharmaceutically acceptable cation, such as 6-(a -methoxy-3,4-dichlorophenylacetamido)-penicillanic acid, the D- and L-epimers thereof, 6-(a - methoxy- 4-chlorophenyl -acetamido)-penicillanic acid, 6-(a - methoxy- 4-bromophenyl-acetamido)- penicillanic acid, 6-(a -methoxy-3-bromo- 4-chlorophenyl-acetamido)-penicillanic acid, and 6-(a -methoxy-3,4,5-trichlorophenyl-acetamido)-penicillanic acid. The derivatives may be produced by reacting 6-aminopenicillanic acid with the corresponding halogenated a -methoxyphenylacetyl chloride or a mixed anhydride of the corresponding acid.ALSO:Pharmaceutical preparations comprise a 6-aminopenicillanic acid derivative of the general formula <FORM:0922278/VI/1> wherein X1 represents chloro, bromo or hydrogen, X2 represents chloro or, when both X1 and X3 are hydrogen, may also represent bromo, X3 is hydrogen but may also represent chloro when both X1 and X2 are chloro and M represents hydrogen or a pharmaceutically acceptable cation (see Group IV (b)). The compounds may be administered alone or in conjunction with other therapeutic agents such as sulphisoxazole, sulphamethizole, methenamine mandelate, phenylazodiaminopyridine, chloramphenicol or nitrofurantoin, either via the oral route or by injection or topical application in the form of tablets, capsules, powders, suspensions, solution or suppositories.
Patent GB-793859-A (GB)
Title: Staple
Inventor: RINEHARDT ALBERT JOHN
IPC: F16B15/08
Filed: 1955-12-28
Abstract: 793,859. Wire staples. HELLER CORPORATION. Dec. 28, 1955. No. 37131/55. Class 89(2) A staple, e.g. for securing electrical-conduit or cable 24, comprises parallel spaced legs 11 interconnected by a back having a straight central-section 13 normal to the legs and extended by downwardlysloping side-portions 14. The legs have sharpened ends 12, and the staples may be assembled in strips stuck with an adhesive. For driving, the staple is supported by guideway 18 and moved by blade 19, which is cut-away centrally at 21 so that the central-section 13 of the staple can be deformed to the shape of the cable. Specification 786,595 [Group VII] is referred to.
Patent GB-1076707-A (GB)
Title: A process for the isolation of alpha-glyceryl ethers from marine oils
IPC: C11B7/00
Filed: 1965-08-31
Abstract: Alpha glyceryl ethers are extracted from a marine oil source by alcoholysing such oil with a C1- 3 aliphatic alcohol, dissolving the alcoholysis product in a substantially non-polar solvent, contacting this solution with a polar solvent which is substantially immiscible with the nonpolar solvent so as to form two phases, recovering from the polar solvent phase an extract containing free hydroxylic alpha glyceryl ethers, saponifying the saponifiable matter of this extract, and recovering the alpha glyceryl ethers from the resulting soap by solvent extraction. These ethers have the formula CH2OH.CHOH.CH2OR, where R is a high alkenyl or alkyl, straight chained radical, e.g. oleyl, palmityl, palmitoleyl or stearyl.  Suitable marine oils are dogfish and catfish liver oils. The non-polar solvent may be a hydrocarbon or a non-volatile edible glyceride oil; e.g. fish oil. The polar solvent may be aqueous methanol, containing 5-10% water. Saponification is suitably effected using KOH, and the solvent for extraction may be CH2Cl2.  In the extraction stage a small quantity of phosphates may be present, e.g. NaH2PO4; Na2HPO4 and Na tripolyphosphate.  The alpha glyceryl ethers may be removed from the solvent by fractional distillation or crystallization.  Viiamin A present in the marine oil source may be removed by solvent extraction with CH2CL2 after removing the alpha glyceryl ethers, or before their removal, by molecular distillation.
Patent GB-1481496-A (GB)
Title: Switching arrangement for control of a relay
IPC: H01H47/32
Filed: 1975-09-10
Abstract: 1481496 Automatic current control BBC BROWN BOVERI & CO Ltd 10 Sept 1975 [12 Sept 1974] 37248/75 Heading G3R [Also in Division H3] A relay L may be operated from a voltage supply U s  higher than its rated level and a range of such voltages may be made acceptable by a 'chopper' switching arrangement which limits the maximum current through the relay coil L to lie  between its pull-in and thermal rating levels, the circuit including a control device T which terminates a first phase by switching off via a switching device 5 the supply E to the relay coil when the current rises to the limit, allowing the current to decay via a 'wattless' branch D, e.g. a flywheel diode, and terminates a second phase by restoring the supply E when the current falls to a second lower limit. The coil current is monitored by the voltage drop across resistor Ri, divided by resistors 11, 12 and amplified by transistors 9, 5, these transistors being coupled by feedback line 14, 13 to form a bi-stable trigger circuit switching on the current through transistor 5 when the coil current falls to a level i - normally set above the drop-out current of the relay, and switches off the current through transistor 5 when the coil current climbs, its rate of change limited by the inductance of coil L, to the upper limit i max . The current through transistor 5 switches on the Darlington in circuit S, incorporating complementary transistors 1, 2, which repetitively connects supply E in pulses to coil L. The hysteresis between the switching levels of the trigger may be adjusted by alteration of the values of the components, particular resistor 12. The trigger circuit is supplied at the constant voltage across Zener diode 15.
Patent GB-374826-A (GB)
Title: Process for combating the formation of "white zinc rust" upon zinc and galvanised objects such as sheets, wires, tubes and the like
IPC: C23C22/24
Filed: 1930-12-11
Abstract: The formation of white rust on zinc or galvanized articles is prevented by treating the article with a solution of a metallic compound, e.g. potassium dichromate, which reacts with the zinc surface to form a protective layer.
Patent GB-1206443-A (GB)
Title: A sub-atmospheric pressure gauge
Inventor: STUBBS NORMAN
IPC: G01L7/00
Filed: 1967-08-15
Abstract: 1,206,443. Pressure gauges. N. STUBBS. Nov.12, 1968 [Aug.15, 1967], No.37458/67. Heading G1L. In a pressure gauge for indicating pressure below atmosphere in which the gauge is attached to a container 21 by a threaded hollow stem 11 the arrangement is such that when the pressure within the container 21 is above atmosphere a diaphragm 13 is deflected to project the free end 15 of a plunger 14, mounted on the diaphragm 15, above the surface 10 but if the pressure within the container 21 falls below atmosphere the diaphragm 13 is deflected against a spring 16 to move the free end 15 of plunger 14 to a position below the surface 10.
Patent GB-626361-A (GB)
Title: Improvements in and relating to the construction of vehicles
IPC: B62D33/06
Filed: 1946-12-23
Abstract: 626,361. Road-vehicle drivers' cabs. NEAVERSON, R. A. Dec. 23, 1946, No. 37646. [Class 108 (i)] The driver's cab of a vehicle is constructed from units which may be cast, pressed or moulded, comprising side panels 1,. 1a, each provided with a window aperture 12 and connected by a windscreen surround which may be one unit comprising members 15, 19, 20 divided vertically by member 21 or horizontally by a member not shown, and grooved to receive a windscreen panel, or may consist only of members 15, 19, grooving then being provided in panels 1, 1a. Alternatively, a separate framed windscreen may be provided. A door surround 23 may be attached to each member 19 and a bracket 25 secured to each side panel. Each door 10, 10a may be cast, pressed, moulded or fabricated, a roof 29 being similarly manufactured. Alternatively a forward roof extension may be provided on the rear body (not shown).
Patent GB-1284072-A (GB)
Title: Testing of concrete
Inventor: ENI MOSHE TE
IPC: G01N3/00
Filed: 1968-08-07
Abstract: 1284072 Fixing inserts NATIONAL RESEARCH DEVELOPMENT CORP 5 Aug 1969 37732/68 Heading F2H [Also in Division G1] In Fig. 1, a bolt 19 to be fixed in a hole 16 having a cavity 31 at the end thereof comprises pivoted members 27 which may be moved from the operative position shown to the inoperative position shown in dotted outline by turning screw 23. The pin may comprise two or more, e.g. six pivoted members. In Fig. 4 a threaded rod 32 is fixed in cavity 53 by a head part comprising 8 spring loaded fingers 43 which are expanded to grip shoulders 53 by expander sleeve 39. The expander sleeve 39 is moved axially of rod 32 by turning ring 38, which is coupled by splines to sleeve 39, relative to rod 32, the sleeve 39 being screw threaded on to rod 32. In Fig. 6 bolt 48 has a conical head 49 which expands split sleeve 55. The sleeve 55 may comprise a series of fingers joined at flange 54, or separate finger like components which are assembled to form the sleeve. When anchored, a flange 51 formed by disc part 50 of head 49 abuts the end of the sleeve 53.
Patent GB-1529295-A (GB)
Title: Telephone exchange circuitry
IPC: H04Q11/04
Filed: 1977-09-09
Abstract: 1529295 Microprocessors in exchanges LE MATERIEL TELEPHONIQUE 9 Sept 1977 [10 Sept 1976] 37792/77 Heading H4K In a telephone exchange having a central control unit (OC) which interfaces through marker circuits (MK-, MS-) with control circuits of the switching network, Figs. 1-5 (not shown), at least one of the marker circuits includes a microprocessor (MP), a program memory (ROM) for the microprocessor, a first group of registers (RO, RI, RF) accessible to both the microprocessor and the control unit, and a second group of registers (RE, RCP) for sending data to and receiving data from the switching network.
Patent GB-1367184-A (GB)
Title: Method of inserting nuclear fuel rods in grid assembly
IPC: G21C3/334
Filed: 1972-08-14
Abstract: 1367184 Fuel elements ATLANTIC RICHFIELD CO 14 Aug 1972 37853/72 Heading G6C Metal alloy clad nuclear fuel rods are inserted into a spacer grid assembly by first forming a lubricant hoarfrost-like coating on the rod so as to avoid scratching the rods. Scratches can act as stress concentration areas, significantly reducing the fatigue life of a fuel rod subjected to cyclic loading. Examples of cladding material are zirconium alloy and stainless steel. In the zirconium alloy case, a protective oxide coating is usually formed on the cladding and removal of parts of this coating by scratching can result in excessive corrosion of the cladding. Even stainless steel clad fuel rods corrode more readily if scratched. The coating is a semi-porous dry frost resembling hoarfrost and is preferably formed by cooling the fuel rods to below 0 C. in a humid atmosphere. Alternatively the rods can be cooled to below 0 C., preferably within the range -35 to -45C. away from the humid atmosphere and then allowed to warm to between -10 and 4 C., preferably -4 to 4C., in the humid atmosphere. The rods may be cooled by being held on a rack above dry ice, usually from 1 to 3 minutes being adequate time. The humid atmosphere is preferably air with a relative humidity of 30 to 70% at 25 C.